linxbox ..: 2014-08-31

05.09.2014

03.09.2014

hempnews. fully functional supercapacitor.

hello and welcome.
this is an excerpt from wakeup-world.com...

“We’ve pretty much figured out the secret sauce of it,” says Mitlin, who’s now with Clarkson University in New York. “The trick is to really understand the structure of a starter material and to tune how it’s processed to give you what would rightfully be called amazing properties.” His team found that if they heated the fibers for 24 hours at a little over 350 degrees Fahrenheit, and then blasted the resulting material with more intense heat, it would exfoliate into carbon nanosheets.Mitlin’s team built their supercapacitors using the hemp-derived carbons as electrodes and an ionic liquid as the electrolyte. Fully assembled, the devices performed far better than commercial supercapacitors in both energy density and the range of temperatures over which they can work. The hemp-based devices yielded energy densities as high as 12 Watt-hours per kilogram, two to three times higher than commercial counterparts. They also operate over an impressive temperature range, from freezing to more than 200 degrees Fahrenheit.

“We’re past the proof-of-principle stage for the fully functional supercapacitor,” he says. “Now we’re gearing up for small-scale manufacturing.”

written by Marco Torres

besides, hemp and cannabis have many uses.
see below...

cu soon.

info pages. biopolitics.

hello and welcome.
here are some informations and links.

http://ieet.org/index.php/IEET/biopolitics

here is some additional information.

and here is a link to the ieet...

ok.cu.

series. horticulture. ethiopia.

hello and welcome.

here is another feature for the horticulture-series.

Excerpts from Hope in a Changing Climate (http://www.open.edu/openlearn/whats-o...)
Part I: Loess Plateau, China - http://youtu.be/sK8JNXHcBMA
Part II: Ethiopia - http://youtu.be/mbEM6DCTK3Y
Part III: Rwanda - http://youtu.be/BVxVC7PuEL8

ok. cu.

more / mehr »

series. horticulture. plan verde.

hello and welcome.
we started horticulture and agriculture with mr. hart.
now we meet a southamerican initiative called plan verde.

bedanken, möchte ich mich bei netzfrau elke krüger und ihrem projekt plan verde

ok. cu.

02.09.2014

videos. new playlist.

hello and welcome.
we have a new playlist. winter gardening ...

ok. cu.

01.09.2014

tools. cyfe.

hello and welcome.
here is cyfe.
a handy tool for quick bi.

here is some more information in german...

ok. cu.

hello. a couple a days ago
I found some very impressive pictures, taken by an excellent photographer.

"Scared Scientists," by Nick Bowers

is depicting brilliant people and concerned scientists. enjoy.